# Set Theory, Logic, Probability, Statistics

- Fundamentals: Set theory, logic and proofs. Probability and statistics
 Views: 584 Announcement: End of year contest, $75+$50 prize! Dec18-13 Meta Thread / Thread Starter Last Post Replies Views Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions... Feb23-13 10:25 AM micromass 1 26,434 how can i show that the Poisson distribution is properly normalized? Oct16-11 05:06 AM chiro 1 1,554 Let Con(PA) be the sentence of arithmetic which translates as "Peano Arithmetic is consistent." Then according to... Oct13-11 01:36 PM Preno 2 1,001 Hello physics forums, I am writing a paper and I am wondering how to calculate the entropy of mixing in a two... Oct17-11 03:49 AM SW VandeCarr 5 1,952 Hello everybody. I have a problem, which is following. AA tosses a coin 3 times and BB 2 times. AA will win, if he... Oct12-11 04:33 PM mathman 6 1,382 Need help with this problem, please! Two standard, fair dice are thrown, and the scores (X1, X2) are recorded. Find... Oct13-11 08:30 PM Cant or Wont 2 1,395 Ok, since nobody answered my last problem, I simplify. :) Let Z = γ1X1 + γ2X2, where the gammas are just constants... Oct12-11 12:29 PM Stephen Tashi 5 1,145 First of all I want to say hello. This is my first time posting on these forums, but they have (well actually YOU have... Oct12-11 04:29 PM Anger 2 1,283 I'm having trouble grasping the concept of centralizers and generators. Is there any way to visualize these groups? ... Oct12-11 07:19 AM Locoism 3 2,168 Hello. I am given an ARMA process that looks like this. Yn = b0Xn+b1X(n-1) Where Xn is a gaussian white noise... Oct12-11 03:59 AM ParrotPete 0 724 "Construct a sample space to show that the truth of this statment P(A\bigcapB\bigcapC)=P(A)*P(B)*P(C) is not enough... Oct14-11 04:46 PM mathman 2 952 Hello everyone! I am stuck in my research with a probability density function problem.. I have 'Alpha' which is a... Oct20-11 11:38 PM Stephen Tashi 25 4,060 Is it okay to compare box plots with different number of data (number of n)? Thank you very much. Oct16-11 01:53 AM bpet 1 636 The definition of an open set S is that there exists, for any point x element of S, an open ball with center x, all of... Oct18-11 09:52 AM nmvictor 24 5,815 A server sends 3 digits (0 and 1) to a computer. The probability of sending 0 is p. I have to check under which... Oct15-11 07:54 PM bour1992 2 683 could you explain if we can define a main/basic concept of math and if terminology corresponds to concepts or is... Oct20-11 06:21 AM pwsnafu 22 2,751 I need to prove f(f^-1(Y'))\subseteqY' for some f: X -> Y and Y' in Y. So far, I've been able to figure this much... Oct13-11 11:06 PM Bacle2 11 927 help withe this tow Question plz ? Q1: A pair of dice, one red and the other green, is rolled six times. We... Oct16-11 05:35 AM sam_0017 1 815 I am not sure if this was the right forum. if not let me know. An auto repair shop plans to sell a new brand of car... Oct16-11 11:46 PM Locrian 1 1,513 Can someone please help me out with this problem. 1. In order to determine insurance premiums, suppose car... Oct18-11 01:51 PM spamiam 1 775 I'm trying to compare fits to data in a certain way. I start with the initial data and fit and compute the \chi^2... Oct17-11 10:12 AM cahill8 0 839 If got two observation per cell, how do I get Turkey's test for additivity? Oct18-11 11:17 AM HallsofIvy 1 819 Hello everyone, I'm studying from Oksendal's book, and I'm stuck at an excercise which asks you to find the... Oct15-11 09:06 AM bpet 1 925 Bill tells the truth one-half of the time and Harry tells the truth two-thirds of the time. Bill says something, and... Oct18-11 01:54 PM spamiam 1 1,026 Hello and thank you in advance for anyone taking time to respond. I working on formulating a theory for... Oct19-11 06:04 PM KayBox 6 1,532 In the notes we had the following example of a problem, with solution: Example. Shooting stars. If you watch the... Oct18-11 12:25 PM faen 3 909 Hi, I need help with the gaussian function in 3D. I'm using the form: z=A*exp( (x-xo)^2/(2σx^2)+(y-yo)^2/(2σy^2)) ... Oct18-11 01:24 PM phyzguy 3 4,231 Hi all. I am trying to find out if it's possible to calculate an r^2 value (% of variation explained) when... Oct18-11 06:46 PM Richard_R 0 924 Hello everyone, My boss has asked me to find if there is any correlation between various sample parameters in a... Oct19-11 02:10 PM ralph86 4 1,309 My book tries to illustrate the conditional expectation for a random variable X(\omega) on a probability space... Oct12-11 05:41 PM micromass 5 1,156 Hey All - I am trying to solve a problem that should be really easy (at least every paper I read says the step is!) ... Oct14-11 11:21 AM Stephen Tashi 1 878 y_i=A{x_i}^b When I solve for A two different ways I am getting different answers..so somewhere I'm doing... Oct14-11 04:02 PM hotvette 3 1,849 I'm wondering if there was a table of moments for a Gaussian Distribution, I found one up to the fourth moment U \sim... Oct19-11 06:46 PM abalter 2 2,856 Hi there, I am writing a program to verify the total combination of dealing 10 cards to two players out of 52... Oct13-11 05:00 PM jambaugh 16 1,671 So i've been given some questions and have answered them. However, there's no answer booklet so I don't know if I am... Oct16-11 01:34 PM Monster92 0 537 Hi. I choose randomly a one word, and I decided to choose a word blue. Let random variable x be a length of the word... Oct18-11 04:39 PM mathman 4 1,351 Hi, Could some one help me to solve the equations ? dX =sqrt(X) dB where X is a process; B is a Brownian motion... Oct16-11 03:20 PM ptc_scr 2 759 This is the problem: "Prove that if A is denumerable and there exists a g: A -> B that is surjective, then there... Oct21-11 11:28 AM autre 14 1,286 the number of ways in which at least one object can be selected out of p objects of one kind,q objects of second kind... Oct20-11 12:28 PM anigeo 0 634 Let (S, ε, P) be a probability space and let A be an element of ε with P(A)>0. Let F={AπE :E is an element of ε }... Oct20-11 11:36 PM disregardthat 3 802 Last week, Pat caught n distinct fish from Lake Nebagamon, but threw all of them back at the end of the fishing trip.... Oct21-11 04:33 AM anigeo 1 707